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Finding the Fourth Proportional to 218,006.74, 327,006.85 and 60,231.70

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Solution

The fourth proportional to 218,006.74, 327,006.85 and 60,231.70 is: 90,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,006.74 : 327,006.85 = 60,231.70 : x
  2. Step 2: Convert to fraction form
    218,006.74/327,006.85 = 60,231.70/x
  3. Step 3: Cross multiply
    218,006.74x = 327,006.85 × 60,231.70
  4. Step 4: Simplify right side
    218,006.74x = 19,696,178,487.15
  5. Step 5: Solve for x
    x = 19,696,178,487.15/218,006.74
  6. Step 6: Final answer
    x = 90,346.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.